usb stick, can't mount

[Michael Wiktowy]

On 5/10/07, Gene Heskett <gene.heskett at verizon.net> wrote:
> Greetings all;
>
> I just mounted, as a vfat filesystem, a 64meg usb key/stick, wrote one file
> to it on a debian/kubuntu 6.06 LTS system, unmounted it and and brought it in
> here and plugged it into the FC6 box, on a usb1.1 hub also, but I cannot mount it.
>
> usb_storage is loaded according to lsmod.  Here is the stanza from the log when I plug it in:
>
> May 10 13:24:42 coyote kernel: scsi2 : SCSI emulation for USB Mass Storage devices
> May 10 13:24:47 coyote kernel: scsi 2:0:0:0: Direct-Access     Staples                   0.00 PQ: 0 ANSI: 2
> May 10 13:24:47 coyote kernel: scsi 2:0:0:0: Attached scsi generic sg4 type 0
> May 10 13:29:03 coyote kernel: usb 2-2.1: USB disconnect, address 4
> May 10 13:29:05 coyote kernel: usb 2-2.2: new full speed USB device using ohci_hcd and address 5
> May 10 13:29:05 coyote kernel: usb 2-2.2: not running at top speed; connect to a high speed hub
> May 10 13:29:05 coyote kernel: usb 2-2.2: configuration #1 chosen from 1 choice
> May 10 13:29:05 coyote kernel: scsi3 : SCSI emulation for USB Mass Storage devices
> May 10 13:29:10 coyote kernel: scsi 3:0:0:0: Direct-Access     Staples                   0.00 PQ: 0 ANSI: 2
> May 10 13:29:10 coyote kernel: scsi 3:0:0:0: Attached scsi generic sg4 type 0
>
> And of course sg4 is assumed to be the loader robot for the 5th robotic scsi
> tape drive the last I knew.
>
> Shouldn't it be available as /dev/sda1?  It always has been before, quite a few times.
>
> Kernel is 2.6.21.1-cfs-v10

It could be the hardware (the combo of the usb drive and usb
controller) just not scaling back to usb 1.1 properly through noisy
lines.

I have had similar things happen when using the USB ports on the front
of my machine (that connect through a long wire that runs by
hard-drives and power supplies, etc to get there). Plugging directly
into the usb ports on the back of the machine helped in my situation.
Maybe it will work for you if you try a different port or skip the hub
completely.

/Mike